Aha! Found it. http://portal.ptcuser.org/p/fo/st/thread=40709 The summary process from the thread: 1. Change password on account. 2. Complete or reassign open tasks. 3. Delegate assignments indefinitely (see Home > Preferences > Calendar Management) 4. Empty and delete any workspaces. 5. Remove them from any groups 6. Add them to the site-level group "Deactivated Users". 7. Remove them from any Projects, Products, or Libraries that they are a member of. 8. Changed their full name by appending "xxx_Deactivated_" to the beginning of the user's full name. If you follow these steps you will be able to reinstate a user at a later date if they return to the company. The combination of these steps also qualifies the user as "deactivated" which is important from a licensing reporting perspective.